I dont know, not 100% sure. I know that ive used silicone products before and the "no goo" (aka "no good") red silicone ball turned my oil blue.
between that blue coloring and what ive heard, ive just avoided those teflon/silicone products altogether.... stainless steel only for this guy!
I think fadedawg will be very familiar with this response:
I am sure you know, silicone swells in the presence on non-polar solvents. Hexane is actually used as a “swelling agent” for silicone tubing to allow for an easier connection.
The swelling effect is the primary reason why silicone makes a poor compatibility choice when selecting a material to come into prolonged direct contact with non-polars.
As you must also be aware, chemical contamination from “extractables” in silicone materials, (in a procedure such as you are describing) is due almost entirely to the physical release of low molecular weight siloxanes, and other impurities from the manufacturing process.
This is why Tygon 3350, or SaniTech-Ultra, are made with platinum cured silicone rather than the more common peroxide cured variety. This is also why We use platinum catalyzed USP6 silicone in our pads. (rather than peroxide/food grade).
As far as I am aware, we are the ONLY company doing this. The cost of material for a simple “baking mat” would be prohibitive in that industry.
For the record (sometime I feel like a broken record)We do not sell the Pad to spray directly onto. Many (many) folks do, and when we realized it (july of 2012), we switched the silicone we use as our raw material as aprophylactic measure.
We also removed the Logo from our pads, because we feared that immersion in non-polar solvent could act to weaken the bond between that thin layer of logo silicone, and the pad beneath. As concerned as we were about the logo....i cringe when I see folks spraying into parchment.
The matrix of silicone in common parchment paper (non-Quilon / silicone coated) is extremely fragile compared to a pad. I imagine the violence of swelling and shrinking on that scale would be tenfold compared to the effect that prompted our own change of material.
The physical wear of swelling/shrinking/swelling/shrinking along with the various stresses inflicted by the innovative public (razor blades, torches etc...) make any sort of performance warranty unmanageable.
So we make em as pure as it gets, and when people ask us....we tell em that if they insist on using them this way, to please discard them if they notice any physical degradation.
I would refrain from cutting the pad to perform your testing, as this will expose the inner weave. Once cut or torn, the physical consequences of swelling could lead to damage along the exposed area.
Let me know where to send it, and I will get a Pad out to you today. Always happy to hear your thoughts. I redacted about 2 pages of hyper technical diatribe from this email.... because I figured you have likely done your own research regarding Pt cured silicone, and the various plasticizers that are used in food grade silicone. This is understandably a topic quite close to my heart; and I will be vary happy to discuss at length should you have specific questions (or non-specific musings?).
Also, should you require it, you have my explicit permission to share anything we discuss with whichever forums you are involved in.
AND
"Most, if not all parchment contains silicone. AKA the exact thing that made oil slicks not safe to spray onto. Apparently the new oil slick material is safe to use with tane. "
id rather not risk it... you guys are blasting onto silicone and parchment paper, some people even using wax paper, and yet im the lunatic for blasting into stainless steel and maybe having 5ppm SS micro molecules in my BHO which end up resting on the nail in the form of a spec of dust after 50 oil hoots. ?!?!?!?!?!